Nvidia no longer have a shader clock. A quote from Ananadtech:
So unless you fancy shipping all of your cards with a 100% overclock I think you should half the frequencies and quote core clock.
So how does GK104 change this? The single most important aspect of GK104, the thing that in turn dictates the design of everything else, is that NVIDIA has dropped the shader clock. Now the entire chip, from ROP to CUDA core, runs on the same core clock. As a consequence, rather than executing two half-warps in quick succession GK104 is built to execute a whole warp at once, and GK104’s hardware has changed dramatically as a result.
So unless you fancy shipping all of your cards with a 100% overclock I think you should half the frequencies and quote core clock.